hum

1. The discordant hum of tourists below .

下面的游客发出不和谐的嗡嗡声。

2. Waves from the deep ocean don 't seem to make much hum at all .

而深海海浪似乎根本不会产生那么多的嗡嗡声。

3. The hum of the heater system was also mum .

平时嗡嗡作响的加热系统也保持了沉默。

4. She does not like poetry , but she likes to hum pop songs .

她并不喜欢诗歌，但是她喜欢哼流行歌曲。

5. Emerging economies such as china and brazil continue to hum .

中国和巴西等新兴经济体继续保持活跃。

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